The DV4Mini now working extremely well with firmware 1.77.
Created a new build for the Raspberry Pi2 consisting of:
Take either of the latest Pixel images for DV4Mini from:
Thanks to EA7IYR and K2DLS for making these images available.
Add the BM XTG from http://www.k2dls.net/blog/2017/04/20/bmxtg-1-2-released/ if not using the K2DLS image.
This system uses the Waveshare/Makibes 320×480 LCD screen:
originally purchased from Amazon https://www.amazon.co.uk/Makibes-Screen-320×480-Designed-Raspberry/dp/B00UV78E9Q/
For Waveshare 3.5″ screen support, I used LCD-show-170309.tar.gz from http://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A).